text: # Copyright (c) 2020-2021 by Fraunhofer Institute for Energy Economics
  # and Energy System Technology (IEE), Kassel, and University of Kassel. All rights reserved.
  # Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
  
  import os
  from pandapipes.io.file_io import from_json
  from pandapipes import pp_dir
  try:
      import pplog as logging
  except ImportError:
      import logging
  
  logger = logging.getLogger(__name__)
  
  heat_tranfer_modelica_path = os.path.join(pp_dir, "networks", "network_files",
                                     "openmodelica_test_networks", "heat_transfer_cases")
  
  def heat_transfer_delta():
      """
  
      :return: net - OpenModelica network converted to a pandapipes network
      :rtype: pandapipesNet
  
      :Example:
          >>> pandapipes.networks.simple_heat_transfer_networks.heat_transfer_delta()
  
      """
      return from_json(os.path.join(heat_tranfer_modelica_path, "delta.json"))
  
  
  def heat_transfer_delta_2sinks():
      """
  
      :return: net - OpenModelica network converted to a pandapipes network
      :rtype: pandapipesNet
  
      :Example:
          >>> pandapipes.networks.simple_heat_transfer_networks.heat_transfer_delta_2sinks()
  
      """
      return from_json(os.path.join(heat_tranfer_modelica_path, "delta_2sinks.json"))
  
  
  def heat_transfer_heights():
      """
  
      :return: net - OpenModelica network converted to a pandapipes network
      :rtype: pandapipesNet
  
      :Example:
          >>> pandapipes.networks.simple_heat_transfer_networks.heat_transfer_heights()
  
      """
      return from_json(os.path.join(heat_tranfer_modelica_path, "heights.json"))
  
  
  def heat_transfer_one_pipe():
      """
  
      :return: net - OpenModelica network converted to a pandapipes network
      :rtype: pandapipesNet
  
      :Example:
          >>> pandapipes.networks.simple_heat_transfer_networks.heat_transfer_one_pipe()
  
      """
      return from_json(os.path.join(heat_tranfer_modelica_path, "one_pipe.json"))
  
  
  def heat_transfer_one_source():
      """
  
      :return: net - OpenModelica network converted to a pandapipes network
      :rtype: pandapipesNet
  
      :Example:
          >>> pandapipes.networks.simple_heat_transfer_networks.heat_transfer_one_source()
  
      """
      return from_json(os.path.join(heat_tranfer_modelica_path, "one_source.json"))
  
  
  def heat_transfer_section_variation():
      """
  
      :return: net - OpenModelica network converted to a pandapipes network
      :rtype: pandapipesNet
  
      :Example:
          >>> pandapipes.networks.simple_heat_transfer_networks.heat_transfer_section_variation()
  
      """
      return from_json(os.path.join(heat_tranfer_modelica_path, "section_variation.json"))
  
  
  def heat_transfer_t_cross():
      """
  
      :return: net - OpenModelica network converted to a pandapipes network
      :rtype: pandapipesNet
  
      :Example:
          >>> pandapipes.networks.simple_heat_transfer_networks.heat_transfer_t_cross()
  
      """
      return from_json(os.path.join(heat_tranfer_modelica_path, "t_cross.json"))
  
  
  def heat_transfer_two_pipes():
      """
  
      :return: net - OpenModelica network converted to a pandapipes network
      :rtype: pandapipesNet
  
      :Example:
          >>> pandapipes.networks.simple_heat_transfer_networks.heat_transfer_two_pipes()
  
      """
      return from_json(os.path.join(heat_tranfer_modelica_path, "two_pipes.json"))
  